Bug 63271

Summary:	Backlight brightness is alwas at 100%
Product:	ACPI	Reporter:	BjoernC (bjoern.cassens)
Component:	Power-Video	Assignee:	acpi_power-video
Status:	CLOSED OBSOLETE
Severity:	normal	CC:	aaron.lu
Priority:	P1
Hardware:	x86-64
OS:	Linux
Kernel Version:	3.11.0-9	Subsystem:
Regression:	No	Bisected commit-id:

Description BjoernC 2013-10-19 21:05:13 UTC

During some tests, i have found out, that the brightness control of the integrated monitor is no longer available (Notebook: Lenovo T430-D17, optimus disabled, nvidia-card active, uefi enabled). If i go back to the Kernel version 3.11.0-4, the brightness control works fine. However, may be this helps to find a proper solution.

Comment 1 BjoernC 2013-10-20 14:22:55 UTC

I have tested the kernel version 3.11.6 and the issue does not exist anymore in this version. Maybe this issue has been fixed in previous versions.